Vertical self-priming pump

a self-priming pump and vertical technology, applied in the field of pumps, can solve the problems of reducing the efficiency of self-priming pumps seriously, affecting the efficiency of pumping, and reducing the efficiency of self-priming pumps, so as to avoid the volume loss generated by backflow and improve pump efficiency

Active Publication Date: 2016-12-15
XIANG GUANGHUI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution improves pump efficiency by 5-8% by eliminating backflow losses and maintaining self-priming functionality, ensuring continuous operation with reduced energy consumption.

Problems solved by technology

However, because there is a backflow gap 3 in the self-priming pump structure, the remaining medium keeps circulating under action of the pressure, which causes big loss in volume efficiency.
The test shows that the loss is about 8%, which lowers down the efficiency of the self-priming pump seriously.
Besides, the self-priming pump cannot reach the normal flow and pump head, and energy consumption is increased.

Method used

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  • Vertical self-priming pump

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Embodiment Construction

[0021]The vertical self-priming pump provided in the present invention improves the working efficiency through the medium backflow blocking device. During the startup and vacuumizing process of the self-priming pump, the medium backflow blocking device does not take effect; when the vacuum izing process is finished and the self-priming pump works normally, because the pressure in the gas-liquid separation chamber is enlarged, the backflow gap channel is blocked through the medium backflow blocking device, so as to reduce the backflow loss of the self-priming pump and improve the working efficiency. The following is detailed description to the present invention combining drawings and embodiments.

[0022]FIG. 2 is the structure diagram of the first specific implementation method of the vertical self-priming pump provided in the present invention. As shown in FIG. 2, the vertical self-priming pump provided in the present invention comprises a pump body 10, a motor 20 and a medium backflo...

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Abstract

The present invention claims a vertical self-priming pump which comprises a pump body, a motor and a medium backflow blocking device, the medium backflow blocking device comprises a static ring and a moving ring which are vertically and oppositely arranged, and an elastic supporting sleeve; the moving ring is embedded on the upper surface of the impeller, the elastic supporting sleeve is fixed on the upper surface of the flow guide body, and the static ring is embedded on the lower surface of an elastic supporting ring. During normal working, the elastic supporting sleeve of the present invention in the medium backflow blocking device generates a downward deformation under the action of liquid medium pressure, thus the moving ring and the static ring closely contact with each other and block the backflow gap channel, and the pump efficiency is improved.

Description

TECHNICAL FIELD[0001]The present invention relates to pump, specifically to a vertical self-priming pump.BACKGROUND ART[0002]The self-priming pump is capable of starting to work at the situation that the liquid inlet pipe is not filled with liquid medium (but the must be enough liquid medium in the pump body) and automatically exhausting gas in the liquid inlet pipe. When the pump is started for the first time, there must be enough liquid medium added into the pump body of the self-priming pump; after this, the self-priming pump can start again by the liquid medium remaining in the pump body. The self-priming pump can be divided into two types according to working principle, including internal mixing type and external mixing type. The internal mixing type self-priming pump means that the gas-liquid mixing is carried out near the inlet of the impeller, while the external mixing type self-priming pump means that the gas-liquid mixing is carried out at the outer edge of the impeller. S...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F04D9/02F04D29/02F04D29/46F04D29/42F04D29/44F04D29/18F04D13/02
CPCF04D9/02F04D29/18F04D29/026F04D13/02F04D29/4293F05B2280/4005F04D29/466F05B2240/30F05B2280/20071F05B2280/2006F04D29/445F04D9/008F04D29/167F04D29/2266
InventorXIANG, GUANGHUIJIANG, XIANGXUNCHEN, HUAIYU
OwnerXIANG GUANGHUI